Components for water meters and various components

Components for water meters and various other components: together with water metersrings are used (the top part that often closes the clock dial), brass rings and pressure plates (which are placed between the clock and the plastic mechanism of the meter contained inside the housing).
Extremely technical parts with maximum accuracy have to guarantee tightness with absolute precision.
These are assembled together with other components such as solenoid valves for measuring gas and the monitoring of eventual leaks.